every indian journalist,war veteran and even army wants to punish pakistan.pakistan made it clear long time ago that nobody can punish it.we aren't kids.we know indian systems.indian army have no experience of this new cold start doctrine and there are ways to cut the entire supply line.you can't defend 8 to 20 thousand men on enemy soil even when they have best air defence systems.at the end of the day,they will get trapped and we will surely cut the entire supply line.india can't fight with this doctrine.this is suicide.both armies use satellites and during war time,it will be difficult for IAF to support indian army.there are different stages of cold start but IAF presence is must.what will happen if IAF forced to repel back? who will save the ibgs? IBGS can't save themselves using air defence.how many missiles they can fire? ibg can only carry limited weapons.they stand no chance.
The name says it all, An Integrated Battle group has its own armour, artillery, air defence, infantry, as well as dedicated air support.
IBGs are suppose to be self sustaining formations, that can move quickly and occupy an area before the enemy has chance to deploy its forces.
You can try and out flank and cut off an IBG once your own forces have mobilized, but then thats what pivot corps are for, they can move forward into enemy territory cover IBGs flanks.